I have an Alpine Type E 12" Sub, and I am running it with a Kicker DX-350 Amp. The amp I have had for a while and had it hooked up to 2 RF Punch 10"s in my Jeep,and it hit pretty good for a small amp. I decided to build a box in the boat and put a new 12 in it.

When I hooked the amp up and got everything in place, I powered it up but had no bass. I fiddled, and tried everything in my power to get that speaker to blast but nothing. I get some sound out of it but barely enough to tell it is moving, only by touching it can you tell it is moving. I have he gain up and the bass up on my deck and still cant get it to put any true sub bass out.

What do I do???? The sub is new, the headunit is new, how do I test an amp to see if it is good, and how would I go about fixing it?

Power is good, fuses are good. I am getting some sound out of the sub, but it is very faint and weak, like it is not getting enough power from the amp. Would I still be getting any sound at all if the amp was fried?

I have 4 GA from the (+) battery to a reducer, then 8 GA to the Amp. I have a 4 GA ground wire going straight to the (-) battery terminal from the amp, and have the remote wire connected with 16 GA. I only have the front 2 speakers hooked up right at the moment from the head unit, but I have played with every setting possible on that head unit and still cant get anymore than a slight vibration to come out of the thing